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/* File name : colors.h
* Version : 2.3
*
* Header file for display driver for Mesa 2.3 under
* Windows95 and WindowsNT
* This file defines macros and global variables needed
* for converting color format
*
* Copyright (C) 1996- Li Wei
* Address : Institute of Artificial Intelligence
* : & Robotics
* : Xi'an Jiaotong University
* Email : liwei@aiar.xjtu.edu.cn
* Web page : http://sun.aiar.xjtu.edu.cn
*
* This file and its associations are partially based on the
* Windows NT driver for Mesa, written by Mark Leaming
* (mark@rsinc.com).
*/
/* $Log: ddcolors.h 1997/6/14 by Li Wei(liwei@aiar.xjtu.edu.cn)
* Macros for pixel format defined
*/
/*
* $Log: colors.h,v $
* Revision 1.1 1999/08/19 00:55:42 jtg
* Initial revision
*
* Revision 1.2 1999/01/03 03:08:57 brianp
* Ted Jump's changes
*
* Revision 1.1 1999/01/03 03:08:12 brianp
* Initial revision
*
* Revision 2.0.2 1997/4/30 15:58:00 CST by Li Wei(liwei@aiar.xjtu.edu.cn)
* Add LUTs need for dithering
*/
/*
* $Log: colors.h,v $
* Revision 1.1 1999/08/19 00:55:42 jtg
* Initial revision
*
* Revision 1.2 1999/01/03 03:08:57 brianp
* Ted Jump's changes
*
* Revision 1.1 1999/01/03 03:08:12 brianp
* Initial revision
*
* Revision 2.0.1 1997/4/29 15:52:00 CST by Li Wei(liwei@aiar.xjtu.edu.cn)
* Add BGR8 Macro
*/
/*
* $Log: colors.h,v $
* Revision 1.1 1999/08/19 00:55:42 jtg
* Initial revision
*
* Revision 1.2 1999/01/03 03:08:57 brianp
* Ted Jump's changes
*
* Revision 1.1 1999/01/03 03:08:12 brianp
* Initial revision
*
* Revision 2.0 1996/11/15 10:55:00 CST by Li Wei(liwei@aiar.xjtu.edu.cn)
* Initial revision
*/
/* Values for wmesa->pixelformat: */
#define PF_8A8B8G8R 3 /* 32-bit TrueColor: 8-A, 8-B, 8-G, 8-R */
#define PF_8R8G8B 4 /* 32-bit TrueColor: 8-R, 8-G, 8-B */
#define PF_5R6G5B 5 /* 16-bit TrueColor: 5-R, 6-G, 5-B bits */
#define PF_DITHER8 6 /* Dithered RGB using a lookup table */
#define PF_LOOKUP 7 /* Undithered RGB using a lookup table */
#define PF_GRAYSCALE 10 /* Grayscale or StaticGray */
#define PF_BADFORMAT 11
#define PF_INDEX8 12
char ColorMap16[] = {
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,
0x02,0x02,0x02,0x02,0x02,0x02,0x02,0x02,
0x03,0x03,0x03,0x03,0x03,0x03,0x03,0x03,
0x04,0x04,0x04,0x04,0x04,0x04,0x04,0x04,
0x05,0x05,0x05,0x05,0x05,0x05,0x05,0x05,
0x06,0x06,0x06,0x06,0x06,0x06,0x06,0x06,
0x07,0x07,0x07,0x07,0x07,0x07,0x07,0x07,
0x08,0x08,0x08,0x08,0x08,0x08,0x08,0x08,
0x09,0x09,0x09,0x09,0x09,0x09,0x09,0x09,
0x0A,0x0A,0x0A,0x0A,0x0A,0x0A,0x0A,0x0A,
0x0B,0x0B,0x0B,0x0B,0x0B,0x0B,0x0B,0x0B,
0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,
0x0D,0x0D,0x0D,0x0D,0x0D,0x0D,0x0D,0x0D,
0x0E,0x0E,0x0E,0x0E,0x0E,0x0E,0x0E,0x0E,
0x0F,0x0F,0x0F,0x0F,0x0F,0x0F,0x0F,0x0F,
0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,
0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,
0x12,0x12,0x12,0x12,0x12,0x12,0x12,0x12,
0x13,0x13,0x13,0x13,0x13,0x13,0x13,0x13,
0x14,0x14,0x14,0x14,0x14,0x14,0x14,0x14,
0x15,0x15,0x15,0x15,0x15,0x15,0x15,0x15,
0x16,0x16,0x16,0x16,0x16,0x16,0x16,0x16,
0x17,0x17,0x17,0x17,0x17,0x17,0x17,0x17,
0x18,0x18,0x18,0x18,0x18,0x18,0x18,0x18,
0x19,0x19,0x19,0x19,0x19,0x19,0x19,0x19,
0x1A,0x1A,0x1A,0x1A,0x1A,0x1A,0x1A,0x1A,
0x1B,0x1B,0x1B,0x1B,0x1B,0x1B,0x1B,0x1B,
0x1C,0x1C,0x1C,0x1C,0x1C,0x1C,0x1C,0x1C,
0x1D,0x1D,0x1D,0x1D,0x1D,0x1D,0x1D,0x1D,
0x1E,0x1E,0x1E,0x1E,0x1E,0x1E,0x1E,0x1E,
0x1F,0x1F,0x1F,0x1F,0x1F,0x1F,0x1F,0x1F};
#define BGR8(r,g,b) (unsigned)(((BYTE)(b & 0xc0 | (g & 0xe0)>>2 | (r & 0xe0)>>5)))
#ifdef DDRAW
#define BGR16(r,g,b) ((WORD)(((BYTE)(ColorMap16[b]) | ((BYTE)(g&0xfc) << 3)) | (((WORD)(BYTE)(ColorMap16[r])) << 11)))
#else
#define BGR16(r,g,b) ((WORD)(((BYTE)(ColorMap16[b]) | ((BYTE)(ColorMap16[g]) << 5)) | (((WORD)(BYTE)(ColorMap16[r])) << 10)))
#endif
#define BGR24(r,g,b) (unsigned long)(((DWORD)(((BYTE)(b)|((WORD)((BYTE)(g))<<8))|(((DWORD)(BYTE)(r))<<16))) << 8)
#define BGR32(r,g,b) (unsigned long)((DWORD)(((BYTE)(b)|((WORD)((BYTE)(g))<<8))|(((DWORD)(BYTE)(r))<<16)))
/*
* If pixelformat==PF_8A8B8G8R:
*/
#define PACK_8A8B8G8R( R, G, B, A ) \
( ((A) << 24) | ((B) << 16) | ((G) << 8) | (R) )
/*
* If pixelformat==PF_8R8G8B:
*/
#define PACK_8R8G8B( R, G, B) ( ((R) << 16) | ((G) << 8) | (B) )
/*
* If pixelformat==PF_5R6G5B:
*/
#ifdef DDRAW
#define PACK_5R6G5B( R, G, B) ((WORD)(((BYTE)(ColorMap16[B]) | ((BYTE)(G&0xfc) << 3)) | (((WORD)(BYTE)(ColorMap16[R])) << 11)))
#else
#define PACK_5R6G5B( R, G, B) ((WORD)(((BYTE)(ColorMap16[B]) | ((BYTE)(ColorMap16[G]) << 5)) | (((WORD)(BYTE)(ColorMap16[R])) << 10)))
#endif
/*----------------------------------------------------------------------------
Division lookup tables. These tables compute 0-255 divided by 51 and
modulo 51. These tables could approximate gamma correction.
*/
char unsigned const aDividedBy51Rounded[256] =
{
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
};
char unsigned const aDividedBy51[256] =
{
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 5,
};
char unsigned const aModulo51[256] =
{
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19,
20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37,
38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 0, 1, 2, 3, 4, 5, 6,
7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25,
26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43,
44, 45, 46, 47, 48, 49, 50, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12,
13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30,
31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48,
49, 50, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17,
18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35,
36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 0, 1, 2, 3,
4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22,
23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 0,
};
/*----------------------------------------------------------------------------
Multiplication LUTs. These compute 0-5 times 6 and 36.
*/
char unsigned const aTimes6[6] =
{
0, 6, 12, 18, 24, 30
};
char unsigned const aTimes36[6] =
{
0, 36, 72, 108, 144, 180
};
/*----------------------------------------------------------------------------
Dither matrices for 8 bit to 2.6 bit halftones.
*/
char unsigned const aHalftone16x16[256] =
{
0, 44, 9, 41, 3, 46, 12, 43, 1, 44, 10, 41, 3, 46, 12, 43,
34, 16, 25, 19, 37, 18, 28, 21, 35, 16, 26, 19, 37, 18, 28, 21,
38, 6, 47, 3, 40, 9, 50, 6, 38, 7, 47, 4, 40, 9, 49, 6,
22, 28, 13, 31, 25, 31, 15, 34, 22, 29, 13, 32, 24, 31, 15, 34,
2, 46, 12, 43, 1, 45, 10, 42, 2, 45, 11, 42, 1, 45, 11, 42,
37, 18, 27, 21, 35, 17, 26, 20, 36, 17, 27, 20, 36, 17, 26, 20,
40, 8, 49, 5, 38, 7, 48, 4, 39, 8, 48, 5, 39, 7, 48, 4,
24, 30, 15, 33, 23, 29, 13, 32, 23, 30, 14, 33, 23, 29, 14, 32,
2, 46, 12, 43, 0, 44, 10, 41, 3, 47, 12, 44, 0, 44, 10, 41,
37, 18, 27, 21, 35, 16, 25, 19, 37, 19, 28, 22, 35, 16, 25, 19,
40, 9, 49, 5, 38, 7, 47, 4, 40, 9, 50, 6, 38, 6, 47, 3,
24, 30, 15, 34, 22, 29, 13, 32, 25, 31, 15, 34, 22, 28, 13, 31,
1, 45, 11, 42, 2, 46, 11, 42, 1, 45, 10, 41, 2, 46, 11, 43,
36, 17, 26, 20, 36, 17, 27, 21, 35, 16, 26, 20, 36, 18, 27, 21,
39, 8, 48, 4, 39, 8, 49, 5, 38, 7, 48, 4, 39, 8, 49, 5,
23, 29, 14, 33, 24, 30, 14, 33, 23, 29, 13, 32, 24, 30, 14, 33,
};
char unsigned const aHalftone8x8[64] =
{
0, 38, 9, 47, 2, 40, 11, 50,
25, 12, 35, 22, 27, 15, 37, 24,
6, 44, 3, 41, 8, 47, 5, 43,
31, 19, 28, 15, 34, 21, 31, 18,
1, 39, 11, 49, 0, 39, 10, 48,
27, 14, 36, 23, 26, 13, 35, 23,
7, 46, 4, 43, 7, 45, 3, 42,
33, 20, 30, 17, 32, 19, 29, 16,
};
char unsigned const aHalftone4x4_1[16] =
{
0, 25, 6, 31,
38, 12, 44, 19,
9, 35, 3, 28,
47, 22, 41, 15
};
char unsigned const aHalftone4x4_2[16] =
{
41, 3, 9, 28,
35, 15, 22, 47,
6, 25, 38, 0,
19, 44, 31, 12
};
/***************************************************************************
aWinGHalftoneTranslation
Translates a 2.6 bit-per-pixel halftoned representation into the
slightly rearranged WinG Halftone Palette.
*/
char unsigned const aWinGHalftoneTranslation[216] =
{
0,
29,
30,
31,
32,
249,
33,
34,
35,
36,
37,
38,
39,
40,
41,
42,
43,
44,
45,
46,
47,
48,
49,
50,
51,
52,
53,
54,
55,
56,
250,
250,
57,
58,
59,
251,
60,
61,
62,
63,
64,
65,
66,
67,
68,
69,
70,
71,
72,
73,
74,
75,
76,
77,
78,
79,
80,
81,
82,
83,
84,
85,
86,
87,
88,
89,
250,
90,
91,
92,
93,
94,
95,
96,
97,
98,
99,
100,
101,
102,
103,
104,
105,
106,
107,
108,
109,
110,
111,
227,
112,
113,
114,
115,
116,
117,
118,
119,
151,
120,
121,
122,
123,
124,
228,
125,
126,
229,
133,
162,
135,
131,
132,
137,
166,
134,
140,
130,
136,
143,
138,
139,
174,
141,
142,
177,
129,
144,
145,
146,
147,
148,
149,
150,
157,
152,
153,
154,
155,
156,
192,
158,
159,
160,
161,
196,
163,
164,
165,
127,
199,
167,
168,
169,
170,
171,
172,
173,
207,
175,
176,
210,
178,
179,
180,
181,
182,
183,
184,
185,
186,
187,
188,
189,
190,
191,
224,
193,
194,
195,
252,
252,
197,
198,
128,
253,
252,
200,
201,
202,
203,
204,
205,
206,
230,
208,
209,
231,
211,
212,
213,
214,
215,
216,
217,
218,
219,
220,
221,
222,
254,
223,
232,
225,
226,
255,
};
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